fixes to %pd format usage

Fixed incorrect string length

Fixed ext/pdo_*/tests/pdo_005.phpt tests failure

mostly fixes to spl, but also some other

further fixes to ext/standard and zend

fix some cases with fast zpp

several fixes -

- param parsing Z_PARAM_STR vs Z_PARAM_STRING
- some functions for new params
- etc

fix macros in the 5 basic extensions

first shot on merging the core fro the int64 branch

update zend_make_printable_zval to take TSRM context

Fixed ZTS build

Fast parameter parsing API

This API is experemental. It may be changed or removed.
It should be used only for really often used functions.
(Keep the original parsing code and wrap us

Fast parameter parsing API

This API is experemental. It may be changed or removed.
It should be used only for really often used functions.
(Keep the original parsing code and wrap usage with #ifndef FAST_ZPP)

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Changed zend_make_printable_zval() to return "use_copy" instead of additional reference argument.
Improved branch prediction.

Refactored run_time_cache usage in object handlers

Removed EG(called_scope) and use corresponding value from EG(current_execute_data)

Removed EG(in_execution). If EG(currentent_execute_data) is not NULL we are executing something.

Removed EG(opline_ptr) and use corresponding value from EG(current_execute_data)

Removed EG(active_op_array) and use corresponding value from EG(current_execute_data)

Uinified call frame handling for user and internal functions.
Now EG(current_execute_data) always point to the call frame of the currently executed function.

Refactored parameter passing mechanism.

In PHP-5.6 and below each argument passed to user function was copies on VM stack twice.
Now we always have ZEND_INIT_FCALL (or simular) opcode th

Refactored parameter passing mechanism.

In PHP-5.6 and below each argument passed to user function was copies on VM stack twice.
Now we always have ZEND_INIT_FCALL (or simular) opcode that pushes "call frame" on top of VM stack.
"Call frame" is actually the same zend_execute_data structure.
All the following ZEND_SEND instructions push arguments on top of the stack in a way that they directly comes into corresponding CV variables of the called frame. Extra arguments are copied at the end of stack frame (after all CV and TMP variables) on function enterance.

There are two minor incompatibilities:
1) It's not allowed to decalre functions redefining arguments e.g. "function foo($a,$a) {}".
2) func_get_arg() and func_get args() return the current value of argument and not the original value that was sent.

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No need to initialize it

More optimizations

Let's assume the name is already lowercased

Fixed _zend_get_parameters_array

it should not decrease the refcount (spotted by
register_shutdown_function in ext/mysqli/tests/bug49442.phpt)

Use arena allocator for zend_class_entry, zend_op_array and zend_property_info that live till the end of request